Hi Art, I guess you need to find out the actual causes of the dross build-up. What type of wave nozzle your machine is using. Is the wave too turbulent ? Check the way that you maintain the wave-solder pot, it is one of the important area to look at.. Poh ==================================================================== At 12:13 PM 10/29/97 +0000, Art G. Pauly wrote: >I have been having problems with excessive dross build-up in our wave >solder machine. >We are considering adding marbles to the solder pot. I_ve heard >conflicting advice on whether or not this is a good idea. I have heard >that it may keep the dross down, but it may also increase the >contamination levels. Does a dross layer over the marbles protect the >solder from contamination? DOES ANYONE HAVE ANY ADVICE ABOUT DROSS & >MARBLES? > > > -Art Pauly >******************************************* > Art Pauly ([log in to unmask]) > Manufacturing Process Engineer > Kistler Instrument Corporation, USA > Phone: (716)691-5100 Fax: (716)691-5226 > World Wide Web http://www.kistler.com >******************************************* > >############################################################## >TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c >############################################################## >To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: >To subscribe: SUBSCRIBE TECHNET <your full name> >To unsubscribe: SIGNOFF TECHNET >############################################################## >Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. >For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 >############################################################## > ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################